29C Grindstone Air Harbor airport diagram gifts — 1 runway drawn from FAA data, for pilots who fly out of Port Austin, Michigan.
Gifts from $8.69. Final price, sales and shipping are shown at checkout.
| Runway | Length | Width | Surface |
|---|---|---|---|
| 18/36 | 1,800 ft | 85 ft | Turf |
Runway data: FAA National Airspace System Resources, cycle effective 29 Oct 2026. Decorative — not for navigation.
Grindstone Air Harbor (29C) is a public-use airport serving Port Austin, Michigan, at 640 feet above sea level, with CTAF 122.9. Its runways: 18/36 (1,800 × 85 ft, turf).
This diagram plots every runway from the FAA’s surveyed threshold coordinates, so it sits at true heading and true length — a gift for the pilots, students, instructors and families of 29C.
Looking for something similar? Shop more Michigan runway diagram shirts and mugs on CafePress.